3 papers
physics.optics2025
Absorption loss and Kerr nonlinearity in barium titanate waveguides
Annina Riedhauser, Charles Möhl, Johannes Schading +4
Because of its exceptionally large Pockels coefficient, barium titanate (BaTiO) is a promising material for various photonic applications at both room and cryogenic temperature…
physics.optics2025
Bidirectional microwave-optical conversion with an integrated soft-ferroelectric barium titanate transducer
Charles Möhl, Annina Riedhauser, Max Glantschnig +7
Efficient, low-noise, and high-bandwidth transduction between optical and microwave photons is key to long-range quantum communication between distant superconducting quantum proce…
physics.optics2024
An ultra-broadband photonic-chip-based traveling-wave parametric amplifier
Nikolai Kuznetsov, Alberto Nardi, Johann Riemensberger +4
Optical amplification, crucial for modern communication and data center interconnects, primarily relies on erbium-doped fiber amplifiers (EDFAs) to enhance signals without distorti…